title: Wide bandwidth, low loss 1 by 4 wavelength division multiplexer on silicon for optical interconnects.
abstract: We demonstrate an add/drop filter based on coupled vertical gratings on silicon. Tailoring of the channel bandwidth and wavelength is experimentally demonstrated. The concept is extended to implement a 1 by 4 wavelength division multiplexer with 6 nm channel separation, 3 nm bandwidth, a flat top response with < 0.8 dB ripple within the 3 dB passband, 1 dB insertion loss and 16 dB crosstalk suppression. The device is ultracompact, having a footprint < 2 X 10(-9)/2.
authors.affiliation: Dept of Electrical and Computer Engineering, University of California San Diego, 9500 Gilman Dr La Jolla, California 92093-0407, USA.
authors.forename: D T H
authors.initials: DT
authors.lastname: Tan
authors.forename: K
authors.initials: K
authors.lastname: Ikeda
authors.forename: S
authors.initials: S
authors.lastname: Zamek
authors.forename: A
authors.initials: A
authors.lastname: Mizrahi
authors.forename: M P
authors.initials: MP
authors.lastname: Nezhad
authors.forename: A V
authors.initials: AV
authors.lastname: Krishnamoorthy
authors.forename: K
authors.initials: K
authors.lastname: Raj
authors.forename: J E
authors.initials: JE
authors.lastname: Cunningham
authors.forename: X
authors.initials: X
authors.lastname: Zheng
authors.forename: I
authors.initials: I
authors.lastname: Shubin
authors.forename: Y
authors.initials: Y
authors.lastname: Luo
authors.forename: Y
authors.initials: Y
authors.lastname: Fainman
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008904:Miniaturization; D055096:Optical Devices; D012031:Refractometry / Q000295:instrumentation*; D012825:Silicon / Q000737:chemistry*; D013685:Telecommunications / Q000295:instrumentation*
chemical_list: D012825:Silicon